mirror of
https://github.com/Droid-Deck/DroidDeck.git
synced 2026-10-14 19:27:09 -04:00
65 lines
3.5 KiB
Python
65 lines
3.5 KiB
Python
#!/usr/bin/env python3
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"""Render the DroidDeck boot animation to .webm (Steam) or .mp4 (H.264).
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Usage: python3 render.py [WIDTH] [HEIGHT] [FPS] [OUT] [light|dark]
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python3 render.py 1280 800 60 droiddeck-boot.webm
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python3 render.py 1920 1080 60 droiddeck-boot.mp4
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python3 render.py 1280 800 60 droiddeck-boot-dark.webm dark
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Needs: pip install playwright && playwright install chromium, plus ffmpeg with libvpx-vp9.
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The animation is drawn by droiddeck-boot.html (same folder); each frame gets real
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motion blur (180-degree shutter, up to 48 sub-frames when things move fast).
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"""
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import base64, os, shutil, subprocess, sys, tempfile, time
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from pathlib import Path
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from playwright.sync_api import sync_playwright
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W = int(sys.argv[1]) if len(sys.argv) > 1 else 1280
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H = int(sys.argv[2]) if len(sys.argv) > 2 else 800
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FPS = int(sys.argv[3]) if len(sys.argv) > 3 else 60
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OUT = sys.argv[4] if len(sys.argv) > 4 else f"droiddeck-boot-{W}x{H}.webm"
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THEME = sys.argv[5] if len(sys.argv) > 5 else "light" # light | dark
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ONLY = [int(x) for x in os.environ.get("FRAMES", "").split(",") if x] # debug: render some frames only
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html = Path(__file__).with_name("droiddeck-boot.html").resolve()
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tmp = Path(os.environ["FRAMEDIR"]) if os.environ.get("FRAMEDIR") else Path(tempfile.mkdtemp(prefix="ddframes_"))
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tmp.mkdir(parents=True, exist_ok=True) # FRAMEDIR=... makes a long render resumable
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t0 = time.time()
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with sync_playwright() as p:
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browser = p.chromium.launch()
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page = browser.new_page(viewport={"width": W, "height": H})
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page.goto(f"{html.as_uri()}?render=1&w={W}&h={H}&theme={THEME}")
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page.wait_for_function("typeof DD !== 'undefined'", timeout=30000)
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n = page.evaluate(f"DD.frameCount({FPS})")
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frames = ONLY or range(n)
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for i in frames:
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if (tmp / f"f{i:05d}.png").exists() and not ONLY:
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continue
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r = page.evaluate(f"DD.renderFrame({i}, {FPS})")
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(tmp / f"f{i:05d}.png").write_bytes(base64.b64decode(r["url"].split(",", 1)[1]))
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if i % 30 == 0 or ONLY:
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print(f"frame {i+1}/{n} blur samples {r['samples']:>2} {time.time()-t0:5.1f}s", flush=True)
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browser.close()
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if ONLY:
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print("frames left in", tmp); sys.exit(0)
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COLOR = ["-colorspace", "bt709", "-color_primaries", "bt709", "-color_trc", "bt709", "-color_range", "tv"]
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SOUND = Path(__file__).with_name("droiddeck-boot-sound.wav") # made by sound.py; muxed in if present
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cmd = ["ffmpeg", "-y", "-loglevel", "error", "-framerate", str(FPS), "-i", str(tmp / "f%05d.png")]
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if SOUND.exists():
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cmd += ["-i", str(SOUND), "-map", "0:v", "-map", "1:a"]
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cmd += ["-c:a", "aac", "-b:a", "192k"] if OUT.lower().endswith(".mp4") else ["-c:a", "libopus", "-b:a", "160k"]
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cmd += ["-vf", "scale=out_color_matrix=bt709:out_range=tv:flags=accurate_rnd+full_chroma_int,format=yuv420p"]
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if OUT.lower().endswith(".mp4"): # H.264 for sharing, previews and anything that won't play webm
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cmd += ["-c:v", "libx264", "-preset", "slow", "-crf", "15", "-profile:v", "high", "-tune", "animation",
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"-g", str(FPS * 2), "-movflags", "+faststart"]
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else: # VP9 webm for Steam's startup movie
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cmd += ["-c:v", "libvpx-vp9", "-b:v", "0", "-crf", "18", "-deadline", "good", "-cpu-used", "2",
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"-row-mt", "1", "-g", str(FPS * 2)]
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cmd += COLOR + ([] if SOUND.exists() else ["-an"]) + [OUT]
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subprocess.run(cmd, check=True)
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if not os.environ.get("FRAMEDIR"):
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shutil.rmtree(tmp)
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print(f"wrote {OUT} ({os.path.getsize(OUT)/1e6:.2f} MB) in {time.time()-t0:.0f}s")
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